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Finding the Fourth Proportional to 53,967.94, 80,902.90 and 18,888.46

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Solution

The fourth proportional to 53,967.94, 80,902.90 and 18,888.46 is: 28,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,967.94 : 80,902.90 = 18,888.46 : x
  2. Step 2: Convert to fraction form
    53,967.94/80,902.90 = 18,888.46/x
  3. Step 3: Cross multiply
    53,967.94x = 80,902.90 × 18,888.46
  4. Step 4: Simplify right side
    53,967.94x = 1,528,131,190.53
  5. Step 5: Solve for x
    x = 1,528,131,190.53/53,967.94
  6. Step 6: Final answer
    x = 28,315.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.